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Month: October 2007

LAL PCs are volunteer, by default, to participate to XWHEP platform.
A simple mail to “xtremweb /a|t lal.in2p3.fr” is sufficient to decline participation.This article describes deployment over LAL PCs. XtremWeb-HEP is a global computing platform developed by LAL to harness new computing power. This platform is in the grid family, aggregating volunteer individual computers to create a new powerful computing facility.
XtremWeb-HEP is based on XtremWeb, developed by LRI.

A volunteer community
The platform is constructed over a set of heterogeneous volunteer personal computer running Linux, Windows or Mac OS X.
These aggregated computers are not dedicated to our platform; they remain their owner property and are only used by our platform without disturbing normal owner usage. These conditions are the activation policy which is entirely customizable. For example, they may be used when the CPU is idle, when the screensaver is running, or accordingly to a scheduler, at night for instance. The platform automatically frees PCs as soon as the activation rules are not validated. The running job, if any, is stopped, the CPU is freed, as well as the RAM and disk.

The Desktop Grid for High Energy Physics (DGHEP) project aims to study different global computing platforms to understand how researchers could benefit from these platforms and cover their increasingly growing computing power needs.

The EDGeS project aims to propose a standardization of grids so that any type of grid could exchange and share resources. The goal is to enable resources sharing between EGEE and Desktop Grid such as Boinc, Xgrid or XtremWeb.Introduction.

EDGeS (http://www.edges-grid.eu/) is a two years european project of type "infrastructure" aiming to work on grid convergence from "insutionnal" grid such as EGEE to desktop grids such as Boinc, Xgrid ot XtremWeb.

This project agregates 9 participants from 6 countries:

SZTAKI, Hongary

CIEMAT, Sapin

Fundecyt, Spain

INRIA, France

IN2P3, France

Universite de Westminster , UK

Universite de Cardiff, UK

AlmereGrid, Netherlands

Universite de Coimbra, Portugal

The LAL has the responsability of the NA3 (Network Activity 3) : "Standardization procedures", and will especially work with the INRIA which is le leader of the JRA1 (Joint Research Activity) "SG-DG Bridges Technologies". LAL also participates to "Service Activities" which goal is to deploy and maintain a new infrastructure combining resources from the different platforms.

NA3 :"Standardization procedures".

NAE is an activity that will focus on collecting and spreading the new standards proposed by this project while aggregating the deepest communion. It will also open the widest possible audience from public and private entities. It will call for experience and expertise sharing in order to define a definitive standard to enable SG and DG resource sharing by unifying a set of standard and immutable interfaces as well as services and protocols. The process of standardization will iterate until an agreement is found within the obtained audience. NA3 will highly interact with JRA1 since this collaboration will help to iterate through the definition of the standard.